Q1582 Plot functions Colour Names and Codes List

In the Colour Names and Codes List in
Citect Help system -1 is listed as 'no change'. When I want to use
it with the Plot functions I get an invalid argument error. Could
you tell me which Plot functions or which arguments of Plot
functions will accept -1 as a colour value?

Solution:

The only argument of all Plot functions
that accepts -1 as a colour value is nFill. The other colour
arguments, ie. HorGridCol, VerGridCol, FrameCol,PenCol and
MarkerCol do not accept -1.